In the equation of the line \( y = \frac{1}{2}x - 3 \), you can identify the slope and y-intercept by comparing it to the slope-intercept form of a line, which is given by:
\[ y = mx + b \]
where \( m \) is the slope and \( b \) is the y-intercept.
From the given equation:
- The slope \( m \) is \( \frac{1}{2} \).
- The y-intercept \( b \) is \(-3\).
So, the slope is \( \frac{1}{2} \) and the y-intercept is \(-3\).